Infantry encirclement

[Blackcloud6]

Here's a proposed optional rule:

Infantry encirclement:  Infantry and gun units that receive direct fire from a three or less hex range from directly opposite hex sides or three none connected hexsides have their morale reduced by one until there no longer any enemy units that can place such fire.   The morale drop is applied the moment the last qualifying DF is conducted against the stack.

This rule would enhance the reason for protecting flanks, trying to outflank and make a surrounded unit suffer a penalty for getting surrounded.  It may help in town assaults too.